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Benefits of pool sand filters: How they work

Benefits of pool sand filters: How they work, Best Pro Pool Service contractors explain

There are myriad choices for the type of pool filter to use in your swimming pool. There are benefits of sand filter and why you may opt for a sand filter rather than other pool filter types, the swimming pool service contractors from Best Pro Pool Service in California explain the benefits of sand pool filters: how they work.

The sand in a pool filter has been ground to about .45 to .55 mm in diameter and is very rough when it is first added. Over time, the sand will lose its roughness; when that happens the sand will need to be changed.  Every five years is the time frame in which the sand will need to be replaced. Some sand filters have been known to operate for close to ten years without being changed, but we caution that if you let it go that long you run the risk of the water not being as clean as it could be. The filter won’t work as efficiently, either, if the sand loses its roughness. When the sand loses its rough texture the filter has runs more frequently to complete its cleaning task and impurities may not be filtered out as well as they should be — or could be — if the sane was still rough.

Benefits of sand pool filters: How they work and when the sand should be changed are explained here as well as how a pool contractor will undertake this task for you.

  1. Remove the old sand from the swimming pool filter. The drain plug will be removed and the water drained out.

  2. The sand will be dug out to expose the laterals.

  3. We know that caution is needed when removing sand because breaking the laterals or the filter’s underdrain could occur. They are fragile pieces of equipment, easily broken and costly to replace.

  4. After the sand has been removed and the filter cleaned, we will examine the laterals to inspect them.

  5. If the sand is impacted, we may need to use a mixture of water and muriatic acid to clean it. The equipment will be rinsed thoroughly after.

  6. The tank will be rinsed and reinstalled after everything is cleaned.

  7. The underdrain assembly will be replaced and water added until tank is half full to cushion the laterals.

  8. Sand will be slowly added. The amount of sand needed is determined by the manufacturer’s instructions.

  9. Once the proper amount of sand has been added the filter tank will be reassembled.

  10. We will re-start your filter system in backwash mode to completely flush any dust from the sand and to allow the sand to settle completely around the laterals.

Because cleaning a sand filter is not something that is done with any regularity, you may find it easier to contact a swimming pool professional when the time comes to replace the sand in your filter. Even if you don’t work with a pool service contractor regularly, you can give us a call and schedule an inspection of your pool equipment and we can let you know when the sand may need to be replaced and can do it for you.

How the sand filter system works:

A swimming pool sand filter will separate contaminates from the water. The backwash filtering system has an inlet and an outlet and the filter and the backwash valve connects the pump outlet and sand filter inlet, and connects the sand filter outlet and pool return. When in the backwash position, the backwash valve connects the pump outlet and sand filter outlet, and connects the sand filter inlet and backwash filtering system inlet.

Swimming pools are fun and enjoyable for the whole family, but they do have unique care and maintenance needs.

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